I just know I had to go to a motorcycle shop to buy it. I'd guess that is your problem. Rebuild for the MC is usually like $13 and can be done in 15 minutes. How straight is your disk? If it rubs too much it'll cause problems too. Just bend it with an adjustable wrench.
98 uzj100. Factory rear-ARB front locked 4.88's. ARB Bull, Warn 9000, Irbis rear bumper, Slee sliders and belly pan. OME t-bars w/863 rears, HID, XM